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authorUlrich Drepper <drepper@redhat.com>2003-03-10 21:31:55 +0000
committerUlrich Drepper <drepper@redhat.com>2003-03-10 21:31:55 +0000
commit873010c8a4cfc702132d2a7363a23b043c8eda46 (patch)
treeede61e24f0cac112ad10ba0972f604ca5a3aa1ea /nptl
parent19afbd2cfde76cce6c4ff3a377fad6eb95fdbcff (diff)
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Not needed at all.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/lowlevelsem.h116
1 files changed, 0 insertions, 116 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/lowlevelsem.h b/nptl/sysdeps/unix/sysv/linux/i386/lowlevelsem.h
deleted file mode 100644
index a273c33cb2..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/i386/lowlevelsem.h
+++ /dev/null
@@ -1,116 +0,0 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _LOWLEVELSEM_H
-#define _LOWLEVELSEM_H 1
-
-#include <dl-sysdep.h>
-#include <tls.h>
-
-#ifndef LOCK
-# ifdef UP
-# define LOCK /* nothing */
-# else
-# define LOCK "lock;"
-# endif
-#endif
-
-#define SYS_futex 240
-
-
-#ifdef I386_USE_SYSENTER
-# ifdef SHARED
-# define LLL_SEM_ENTER_KERNEL(arg) "call *%%gs:%P" #arg "\n\t"
-# else
-# define LLL_SEM_ENTER_KERNEL(arg) "call *_dl_sysinfo\n\t"
-# endif
-#else
-# define LLL_SEM_ENTER_KERNEL(arg) "int $0x80\n\t"
-#endif
-
-#define lll_sem_wait(sem) \
- ({ int result, ignore1, ignore2; \
- __asm __volatile ("1:\taddl $1,8(%4)\n\t" \
- LOCK "addl $1,(%4)\n\t" \
- "jng 2f\n" \
- ".subsection 1\n" \
- "2:\tmovl %4, %%eax\n\t" \
- "call __lll_unlock_wake\n\t" \
- "jmp 3f\n\t" \
- ".previous\n" \
- "3:\tpushl %%ebx\n\t" \
- "movl %%esi, %%ecx\n\t" \
- "movl %%esi, %%edx\n\t" \
- "leal 4(%4), %%ebx\n\t" \
- "movl %5, %%eax\n\t" \
- LLL_SEM_ENTER_KERNEL (9) \
- "movl %%eax, %%edx\n\t" \
- "popl %%ebx\n\t" \
- "orl $-1, %%eax\n\t" \
- LOCK "xaddl %%eax, (%4)\n\t" \
- "jne 4f\n\t" \
- ".subsection 1\n" \
- "4:\tmovl %4, %%ecx\n\t" \
- "call __lll_lock_wait\n\t" \
- "jmp 5f\n\t" \
- ".previous\n" \
- "5:\tsubl $1,8(%4)\n\t" \
- "xorl %0, %0\n\t" \
- "cmpl $0, 4(%4)\n\t" \
- "jne,pt 6f\n\t" \
- "cmpl %7, %%edx\n\t" \
- "jne,pn 1b\n\t" \
- "addl %8, %0\n\t" /* Shorter than movl %7, %0 */ \
- "6:" \
- : "=a" (result), "=c" (ignore1), "=d" (ignore2), \
- "=m" (*sem) \
- : "D" (sem), "i" (SYS_futex), "S" (0), \
- "i" (-EINTR), "i" (EINTR), \
- "i" (offsetof (tcbhead_t, sysinfo))); \
- result; })
-
-
-extern int __lll_sem_timedwait (struct sem *sem, const struct timespec *ts)
- __attribute__ ((regparm (2))) attribute_hidden;
-#define lll_sem_timedwait(sem, timeout) \
- __lll_sem_timedwait (sem, timeout)
-
-
-#define lll_sem_post(sem) \
- (void) ({ int ignore1, ignore2, ignore3; \
- __asm __volatile ("movl $1, %%eax\n\t" \
- LOCK \
- "xaddl %%eax, (%4)\n\t" \
- "pushl %%esi\n\t" \
- "pushl %%ebx\n\t" \
- "movl %4, %%ebx\n\t" \
- "leal 1(%%eax), %%edx\n\t" \
- "xorl %%esi, %%esi\n\t" \
- "movl %5, %%eax\n\t" \
- /* movl $FUTEX_WAKE, %ecx */ \
- "movl $1, %%ecx\n\t" \
- LLL_SEM_ENTER_KERNEL (6) \
- "popl %%ebx\n\t" \
- "popl %%esi" \
- : "=&a" (ignore1), "=c" (ignore2), \
- "=m" (*sem), "=d" (ignore3) \
- : "r" (sem), "i" (SYS_futex), \
- "i" (offsetof (tcbhead_t, sysinfo))); })
-
-#endif /* lowlevelsem.h */